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Applications & Uses of L-cysteine

04/05/2016 admin

L-cysteine is a proteinogenic amino acid contributing to building protein and includes the element sulphur. It is a white solid that is slightly soluble in water. It is common in many foods such as eggs, meat, dairy products, and whole grains as well as skin horns and hair. L-cysteine is a proteinogenic amino acid contributing to building protein and includes the element sulphur. 

 

L-cysteine Used in Foods & Beverages

In food applications, L-cysteine is the ideal intermediate for process flavorings. It is principally used in meat flavorings and roast aromas. L-Cysteine is added to various types of dough during processing to break down the gluten, a sticky protein contained in flour. This makes the dough much easier to knead and process.

 

L-Cysteine Used in Other Applications

In some cosmetic preparations, L-cysteine is used as an antiaging agent. This application makes use of cysteine's property of acting as a radical scavenger. The amino acid can therefore contribute to delaying aging processes, for example of the skin.

Especially, in Japan, L-cysteine is used to prepare hair for permanent waves, instead of the unpleasant smelling thioglycolic acid that is preferred in Europe. It dissolves the disulfide bridges of the keratin in the hair, loosening the hair structure and reshaping the hair.